Insights
The Charter Group Monthly Letter
What do interest rates, government borrowing and business investment mean for a portfolio?
In The Charter Group Monthly Letter, Mark Jasayko examines questions like these and explains their implications for investment decisions. Read his arguments, the risks he identifies and the portfolio updates reported in each issue.
Latest Monthly Investment Memo

September 2026
Tariff Tantrum 2.0
Mark Jasayko examines Canada’s tariff debate and argues that rising borrowing costs may have greater consequences for Canadian households, businesses and investment portfolios.
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